We spent 3 nights here as a family of 5. The house is split into 2 levels and could actually comfortably sleep 9. There is a huge king size bed on the first floor with bathroom and two further bedrooms and bathroom downstairs with a pullout in the central den. One of the bedrooms in set up for children and my kids so wanted to take the huge teddy home with us, he was so soft.
The main beds were clean and comfortable however I was unsure if the children's bed's had been changed, they could do with some new sheets as they had holes which I had to turn around. The house is very modern with great flat screen TV's, cable and most importantly free wi-fi, although it is extremely patchy and download is limited. We bar-b-que'd both nights and sat out on the deck to eat which was lovely. The house was lovely and clean and well equipped. The only appliances it lacked was washer and dryer. I think they are there just behind locked doors.The location is closer to Glacier Point than the valley floor, it will take you about 30 mins to reach the valley but it was perfect us. In the height of summer the valley floor is so busy it was lovely to get away and take in the peace and quiet of Yosemite which is really what you want.
So long as you have a car you are equal distance to the valley floor, glacier point and mariposa grove, all the main spots you want to visit in 3 days. I'd love to see this place in winter, thankfully it had a flat driveway if you do visit them. Thoroughly enjoyed our stay and would will highly recommend.